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Edit File : verilog.vim \| Size : 7.97 KB
" Language: Verilog HDL " Maintainer: Chih-Tsun Huang <cthuang@cs.nthu.edu.tw> " Last Change: 2017 Aug 25 by Chih-Tsun Huang " URL: http://www.cs.nthu.edu.tw/~cthuang/vim/indent/verilog.vim " " Credits: " Suggestions for improvement, bug reports by " Takuya Fujiwara <tyru.exe@gmail.com> " Thilo Six <debian@Xk2c.de> " Leo Butlero <lbutler@brocade.com> " " Buffer Variables: " b:verilog_indent_modules : indenting after the declaration " of module blocks " b:verilog_indent_width : indenting width " b:verilog_indent_verbose : verbose to each indenting " " Only load this indent file when no other was loaded. if exists("b:did_indent") finish endif let b:did_indent = 1 setlocal indentexpr=GetVerilogIndent() setlocal indentkeys=!^F,o,O,0),=begin,=end,=join,=endcase setlocal indentkeys+==endmodule,=endfunction,=endtask,=endspecify setlocal indentkeys+==endconfig,=endgenerate,=endprimitive,=endtable setlocal indentkeys+==`else,=`elsif,=`endif " Only define the function once. if exists("GetVerilogIndent") finish endif let s:cpo_save = &cpo set cpo&vim function GetVerilogIndent() if exists('b:verilog_indent_width') let offset = b:verilog_indent_width else let offset = shiftwidth() endif if exists('b:verilog_indent_modules') let indent_modules = offset else let indent_modules = 0 endif " Find a non-blank line above the current line. let lnum = prevnonblank(v:lnum - 1) " At the start of the file use zero indent. if lnum == 0 return 0 endif let lnum2 = prevnonblank(lnum - 1) let curr_line = getline(v:lnum) let last_line = getline(lnum) let last_line2 = getline(lnum2) let ind = indent(lnum) let ind2 = indent(lnum - 1) let offset_comment1 = 1 " Define the condition of an open statement " Exclude the match of //, / or / let vlog_openstat = '\(\<or\>\\|\([/]\)\@<![(,{><+-/%^&\|!=?:]\([/]\)\@!\)' " Define the condition when the statement ends with a one-line comment let vlog_comment = '\(//.\\|/\.\/\s\)' if exists('b:verilog_indent_verbose') let vverb_str = 'INDENT VERBOSE:' let vverb = 1 else let vverb = 0 endif " Indent accoding to last line " End of multiple-line comment if last_line =~ '\/\s$' && last_line !~ '/\.\{-}\/' let ind = ind - offset_comment1 if vverb echo vverb_str "De-indent after a multiple-line comment." endif " Indent after if/else/for/case/always/initial/specify/fork blocks " Note: We exclude '`if' or '`else' and consider 'end else' " 'end if' is redundant here elseif last_line =~ '^\s\(end\)\=\s`\@<!\<\(if\\|else\)\>' \|\| \ last_line =~ '^\s\<\(for\\|case\%[[zx]]\)\>' \|\| \ last_line =~ '^\s\<\(always\\|initial\)\>' \|\| \ last_line =~ '^\s\<\(specify\\|fork\)\>' if last_line !~ '\(;\\|\<end\>\)\s' . vlog_comment . '$' \|\| \ last_line =~ '\(//\\|/\\).\(;\\|\<end\>\)\s' . vlog_comment . '$' let ind = ind + offset if vverb \| echo vverb_str "Indent after a block statement." \| endif endif " Indent after function/task/config/generate/primitive/table blocks elseif last_line =~ '^\s\<\(function\\|task\\|config\\|generate\\|primitive\\|table\)\>' if last_line !~ '\<end\>\s' . vlog_comment . '$' \|\| \ last_line =~ '\(//\\|/\\).\(;\\|\<end\>\)\s' . vlog_comment . '$' let ind = ind + offset if vverb echo vverb_str "Indent after function/task block statement." endif endif " Indent after module/function/task/specify/fork blocks elseif last_line =~ '^\s\<module\>' let ind = ind + indent_modules if vverb && indent_modules echo vverb_str "Indent after module statement." endif if last_line =~ '[(,]\s' . vlog_comment . '$' && \ last_line !~ '\(//\\|/\\).[(,]\s' . vlog_comment . '$' let ind = ind + offset if vverb echo vverb_str "Indent after a multiple-line module statement." endif endif " Indent after a 'begin' statement elseif last_line =~ '\(\<begin\>\)\(\s:\s\w\+\)' . vlog_comment . '$' && \ last_line !~ '\(//\\|/\\).\(\<begin\>\)' && \ ( last_line2 !~ vlog_openstat . '\s' . vlog_comment . '$' \|\| \ last_line2 =~ '^\s[^=!]\+\s:\s' . vlog_comment . '$' ) let ind = ind + offset if vverb \| echo vverb_str "Indent after begin statement." \| endif " De-indent for the end of one-line block elseif ( last_line !~ '\<begin\>' \|\| \ last_line =~ '\(//\\|/\\).\<begin\>' ) && \ last_line2 =~ '\<\(`\@<!if\\|`\@<!else\\|for\\|always\\|initial\)\>.' . \ vlog_comment . '$' && \ last_line2 !~ \ '\(//\\|/\\).\<\(`\@<!if\\|`\@<!else\\|for\\|always\\|initial\)\>' && \ last_line2 !~ vlog_openstat . '\s' . vlog_comment . '$' && \ ( last_line2 !~ '\<begin\>' \|\| \ last_line2 =~ '\(//\\|/\\).\<begin\>' ) let ind = ind - offset if vverb echo vverb_str "De-indent after the end of one-line statement." endif " Multiple-line statement (including case statement) " Open statement " Ident the first open line elseif last_line =~ vlog_openstat . '\s' . vlog_comment . '$' && \ last_line !~ '\(//\\|/\\).' . vlog_openstat . '\s$' && \ last_line2 !~ vlog_openstat . '\s' . vlog_comment . '$' let ind = ind + offset if vverb \| echo vverb_str "Indent after an open statement." \| endif " Close statement " De-indent for an optional close parenthesis and a semicolon, and only " if there exists precedent non-whitespace char elseif last_line =~ ')\s;\s' . vlog_comment . '$' && \ last_line !~ '^\s)\s;\s' . vlog_comment . '$' && \ last_line !~ '\(//\\|/\\).\S)\s;\s' . vlog_comment . '$' && \ ( last_line2 =~ vlog_openstat . '\s' . vlog_comment . '$' && \ last_line2 !~ ';\s//.$') && \ last_line2 !~ '^\s' . vlog_comment . '$' let ind = ind - offset if vverb \| echo vverb_str "De-indent after a close statement." \| endif " `ifdef or `ifndef or `elsif or `else elseif last_line =~ '^\s`\<\(ifn\?def\\|elsif\\|else\)\>' let ind = ind + offset if vverb echo vverb_str "Indent after a `ifdef or `ifndef or `elsif or `else statement." endif endif " Re-indent current line " De-indent on the end of the block " join/end/endcase/endfunction/endtask/endspecify if curr_line =~ '^\s\<\(join\\|end\\|endcase\)\>' \|\| \ curr_line =~ '^\s\<\(endfunction\\|endtask\\|endspecify\)\>' \|\| \ curr_line =~ '^\s\<\(endconfig\\|endgenerate\\|endprimitive\\|endtable\)\>' let ind = ind - offset if vverb \| echo vverb_str "De-indent the end of a block." \| endif elseif curr_line =~ '^\s\<endmodule\>' let ind = ind - indent_modules if vverb && indent_modules echo vverb_str "De-indent the end of a module." endif " De-indent on a stand-alone 'begin' elseif curr_line =~ '^\s\<begin\>' if last_line !~ '^\s\<\(function\\|task\\|specify\\|module\\|config\\|generate\\|primitive\\|table\)\>' && \ last_line !~ '^\s\()\s;\\|)\+\)\s' . vlog_comment . '$' && \ ( last_line =~ \ '\<\(`\@<!if\\|`\@<!else\\|for\\|case\%[[zx]]\\|always\\|initial\)\>' \|\| \ last_line =~ ')\s' . vlog_comment . '$' \|\| \ last_line =~ vlog_openstat . '\s' . vlog_comment . '$' ) let ind = ind - offset if vverb echo vverb_str "De-indent a stand alone begin statement." endif endif " De-indent after the end of multiple-line statement elseif curr_line =~ '^\s)' && \ ( last_line =~ vlog_openstat . '\s' . vlog_comment . '$' \|\| \ last_line !~ vlog_openstat . '\s' . vlog_comment . '$' && \ last_line2 =~ vlog_openstat . '\s' . vlog_comment . '$' ) let ind = ind - offset if vverb echo vverb_str "De-indent the end of a multiple statement." endif " De-indent `elsif or `else or `endif elseif curr_line =~ '^\s*`\<\(elsif\\|else\\|endif\)\>' let ind = ind - offset if vverb \| echo vverb_str "De-indent `elsif or `else or `endif statement." \| endif endif " Return the indention return ind endfunction let &cpo = s:cpo_save unlet s:cpo_save " vim:sw=2 Back

Edit File : verilog.vim | Size : 7.97 KB

" Language:     Verilog HDL
" Maintainer:	Chih-Tsun Huang <cthuang@cs.nthu.edu.tw>
" Last Change:	2017 Aug 25 by Chih-Tsun Huang
" URL:		    http://www.cs.nthu.edu.tw/~cthuang/vim/indent/verilog.vim
"
" Credits:
"   Suggestions for improvement, bug reports by
"     Takuya Fujiwara <tyru.exe@gmail.com>
"     Thilo Six <debian@Xk2c.de>
"     Leo Butlero <lbutler@brocade.com>
"
" Buffer Variables:
"     b:verilog_indent_modules : indenting after the declaration
"				 of module blocks
"     b:verilog_indent_width   : indenting width
"     b:verilog_indent_verbose : verbose to each indenting
"

" Only load this indent file when no other was loaded.
if exists("b:did_indent")
  finish
endif
let b:did_indent = 1

setlocal indentexpr=GetVerilogIndent()
setlocal indentkeys=!^F,o,O,0),=begin,=end,=join,=endcase
setlocal indentkeys+==endmodule,=endfunction,=endtask,=endspecify
setlocal indentkeys+==endconfig,=endgenerate,=endprimitive,=endtable
setlocal indentkeys+==`else,=`elsif,=`endif

" Only define the function once.
if exists("*GetVerilogIndent")
  finish
endif

let s:cpo_save = &cpo
set cpo&vim

function GetVerilogIndent()

if exists('b:verilog_indent_width')
    let offset = b:verilog_indent_width
  else
    let offset = shiftwidth()
  endif
  if exists('b:verilog_indent_modules')
    let indent_modules = offset
  else
    let indent_modules = 0
  endif

" Find a non-blank line above the current line.
  let lnum = prevnonblank(v:lnum - 1)

" At the start of the file use zero indent.
  if lnum == 0
    return 0
  endif

let lnum2 = prevnonblank(lnum - 1)
  let curr_line  = getline(v:lnum)
  let last_line  = getline(lnum)
  let last_line2 = getline(lnum2)
  let ind  = indent(lnum)
  let ind2 = indent(lnum - 1)
  let offset_comment1 = 1
  " Define the condition of an open statement
  "   Exclude the match of //, /* or */
  let vlog_openstat = '$\<or\>\|\([*/]$\@<![*(,{><+-/%^&|!=?:]$[*/]$\@!\)'
  " Define the condition when the statement ends with a one-line comment
  let vlog_comment = '$//.*\|/\*.*\*/\s*$'
  if exists('b:verilog_indent_verbose')
    let vverb_str = 'INDENT VERBOSE:'
    let vverb = 1
  else
    let vverb = 0
  endif

" Indent accoding to last line
  " End of multiple-line comment
  if last_line =~ '\*/\s*$' && last_line !~ '/\*.\{-}\*/'
    let ind = ind - offset_comment1
    if vverb
      echo vverb_str "De-indent after a multiple-line comment."
    endif

" Indent after if/else/for/case/always/initial/specify/fork blocks
  " Note: We exclude '`if' or '`else' and consider 'end else' 
  "       'end if' is redundant here
  elseif last_line =~ '^\s*$end$\=\s*`\@<!\<$if\|else$\>' ||
    \ last_line =~ '^\s*\<$for\|case\%[[zx]]$\>' ||
    \ last_line =~ '^\s*\<$always\|initial$\>' ||
    \ last_line =~ '^\s*\<$specify\|fork$\>'
    if last_line !~ '$;\|\<end\>$\s*' . vlog_comment . '*$' ||
      \ last_line =~ '$//\|/\*$.*$;\|\<end\>$\s*' . vlog_comment . '*$'
      let ind = ind + offset
      if vverb | echo vverb_str "Indent after a block statement." | endif
    endif
  " Indent after function/task/config/generate/primitive/table blocks
  elseif last_line =~ '^\s*\<$function\|task\|config\|generate\|primitive\|table$\>'
    if last_line !~ '\<end\>\s*' . vlog_comment . '*$' ||
      \ last_line =~ '$//\|/\*$.*$;\|\<end\>$\s*' . vlog_comment . '*$'
      let ind = ind + offset
      if vverb
	echo vverb_str "Indent after function/task block statement."
      endif
    endif

" Indent after module/function/task/specify/fork blocks
  elseif last_line =~ '^\s*\<module\>'
    let ind = ind + indent_modules
    if vverb && indent_modules
      echo vverb_str "Indent after module statement."
    endif
    if last_line =~ '[(,]\s*' . vlog_comment . '*$' &&
      \ last_line !~ '$//\|/\*$.*[(,]\s*' . vlog_comment . '*$'
      let ind = ind + offset
      if vverb
	echo vverb_str "Indent after a multiple-line module statement."
      endif
    endif

" Indent after a 'begin' statement
  elseif last_line =~ '$\<begin\>$$\s*:\s*\w\+$*' . vlog_comment . '*$' &&
    \ last_line !~ '$//\|/\*$.*$\<begin\>$' &&
    \ ( last_line2 !~ vlog_openstat . '\s*' . vlog_comment . '*$' ||
    \ last_line2 =~ '^\s*[^=!]\+\s*:\s*' . vlog_comment . '*$' )
    let ind = ind + offset
    if vverb | echo vverb_str "Indent after begin statement." | endif

" De-indent for the end of one-line block
  elseif ( last_line !~ '\<begin\>' ||
    \ last_line =~ '$//\|/\*$.*\<begin\>' ) &&
    \ last_line2 =~ '\<$`\@<!if\|`\@<!else\|for\|always\|initial$\>.*' .
      \ vlog_comment . '*$' &&
    \ last_line2 !~
      \ '$//\|/\*$.*\<$`\@<!if\|`\@<!else\|for\|always\|initial$\>' &&
    \ last_line2 !~ vlog_openstat . '\s*' . vlog_comment . '*$' &&
    \ ( last_line2 !~ '\<begin\>' ||
    \ last_line2 =~ '$//\|/\*$.*\<begin\>' )
    let ind = ind - offset
    if vverb
      echo vverb_str "De-indent after the end of one-line statement."
    endif

" Multiple-line statement (including case statement)
    " Open statement
    "   Ident the first open line
    elseif  last_line =~ vlog_openstat . '\s*' . vlog_comment . '*$' &&
      \ last_line !~ '$//\|/\*$.*' . vlog_openstat . '\s*$' &&
      \ last_line2 !~ vlog_openstat . '\s*' . vlog_comment . '*$'
      let ind = ind + offset
      if vverb | echo vverb_str "Indent after an open statement." | endif

" Close statement
    "   De-indent for an optional close parenthesis and a semicolon, and only
    "   if there exists precedent non-whitespace char
    elseif last_line =~ ')*\s*;\s*' . vlog_comment . '*$' &&
      \ last_line !~ '^\s*)*\s*;\s*' . vlog_comment . '*$' &&
      \ last_line !~ '$//\|/\*$.*\S)*\s*;\s*' . vlog_comment . '*$' &&
      \ ( last_line2 =~ vlog_openstat . '\s*' . vlog_comment . '*$' &&
      \ last_line2 !~ ';\s*//.*$') &&
      \ last_line2 !~ '^\s*' . vlog_comment . '$'
      let ind = ind - offset
      if vverb | echo vverb_str "De-indent after a close statement." | endif

" `ifdef or `ifndef or `elsif or `else
  elseif last_line =~ '^\s*`\<$ifn\?def\|elsif\|else$\>'
    let ind = ind + offset
    if vverb
      echo vverb_str "Indent after a `ifdef or `ifndef or `elsif or `else statement."
    endif

endif

" Re-indent current line

" De-indent on the end of the block
  " join/end/endcase/endfunction/endtask/endspecify
  if curr_line =~ '^\s*\<$join\|end\|endcase$\>' ||
    \ curr_line =~ '^\s*\<$endfunction\|endtask\|endspecify$\>' ||
    \ curr_line =~ '^\s*\<$endconfig\|endgenerate\|endprimitive\|endtable$\>'
    let ind = ind - offset
    if vverb | echo vverb_str "De-indent the end of a block." | endif
  elseif curr_line =~ '^\s*\<endmodule\>'
    let ind = ind - indent_modules
    if vverb && indent_modules
      echo vverb_str "De-indent the end of a module."
    endif

" De-indent on a stand-alone 'begin'
  elseif curr_line =~ '^\s*\<begin\>'
    if last_line !~ '^\s*\<$function\|task\|specify\|module\|config\|generate\|primitive\|table$\>' &&
      \ last_line !~ '^\s*$)*\s*;\|)\+$\s*' . vlog_comment . '*$' &&
      \ ( last_line =~
	\ '\<$`\@<!if\|`\@<!else\|for\|case\%[[zx]]\|always\|initial$\>' ||
      \ last_line =~ ')\s*' . vlog_comment . '*$' ||
      \ last_line =~ vlog_openstat . '\s*' . vlog_comment . '*$' )
      let ind = ind - offset
      if vverb
	echo vverb_str "De-indent a stand alone begin statement."
      endif
    endif

" De-indent after the end of multiple-line statement
  elseif curr_line =~ '^\s*)' &&
    \ ( last_line =~ vlog_openstat . '\s*' . vlog_comment . '*$' ||
    \ last_line !~ vlog_openstat . '\s*' . vlog_comment . '*$' &&
    \ last_line2 =~ vlog_openstat . '\s*' . vlog_comment . '*$' )
    let ind = ind - offset
    if vverb
      echo vverb_str "De-indent the end of a multiple statement."
    endif

" De-indent `elsif or `else or `endif
  elseif curr_line =~ '^\s*`\<$elsif\|else\|endif$\>'
    let ind = ind - offset
    if vverb | echo vverb_str "De-indent `elsif or `else or `endif statement." | endif

endif

" Return the indention
  return ind
endfunction

let &cpo = s:cpo_save
unlet s:cpo_save

" vim:sw=2

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